Re: [Arm-netbook] Cost of pre-production prototypes?

On Thu, Oct 12, 2017 at 3:10 AM, Jonathan Frederickson wrote: >> if it's ok with you the priority will be on people with linux kernel >> / u-boot (etc.) experience > > Understandable, that seems to be what you need the most at this point. that and some extra cash.

Re: [Arm-netbook] Cost of pre-production prototypes?

> if it's ok with you the priority will be on people with linux kernel > / u-boot (etc.) experience Understandable, that seems to be what you need the most at this point. > well, "sysadmin" to me says "clearly capable of trusting and > following written instructions to the letter" which

Re: [Arm-netbook] HDMI High-Frequency Layout: Recommendations

https://ez.analog.com/docs/DOC-11303 Each TMDS signal shall have single ended impedance of 50 Ω ± 10%. Each TMDS pair shall have differential impedance of 100 Ω ± 5%. whoops :) 89 ohm... 50 ohm. 89 ohm... 50 ohm. oops... :) ___ arm-netbook

Re: [Arm-netbook] Cost of pre-production prototypes?

On Thu, Oct 12, 2017 at 1:41 AM, Jonathan Frederickson wrote: > I'm interested as well, though I likewise don't have the low-level > software experience that would likely be required. if it's ok with you the priority will be on people with linux kernel / u-boot (etc.)

Re: [Arm-netbook] Cost of pre-production prototypes?

I'm interested as well, though I likewise don't have the low-level software experience that would likely be required. I'm a Linux sysadmin, so Linux I can do, but ARM kernel/boot stuff is a bit out of my depth thus far. That said, I do have access to a laser cutter and a (small) 3D printer, so I

Re: [Arm-netbook] HDMI High-Frequency Layout: Recommendations

--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 On Wed, Oct 11, 2017 at 6:18 PM, Richard Wilbur wrote: > Afterthought: If PADS does give impedance values, please include the > values for each of the HDMI differential traces and a URL to

Re: [Arm-netbook] HDMI High-Frequency Layout: Recommendations

--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 On Wed, Oct 11, 2017 at 5:58 PM, Richard Wilbur wrote: > Your change to TX1 definitely looks like an improvement. > > In order to make a determination on the best course of action > regarding

Re: [Arm-netbook] Cost of pre-production prototypes?

On Thu, Oct 12, 2017 at 12:34 AM, Tor, the Marqueteur wrote: >> well the microdesktop has to go out at the same time, and that's >> been ready for months. it's a little limiting to use the card on >> its own (no access to UART boot messages for example) and

Re: [Arm-netbook] Cost of pre-production prototypes?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/11/2017 12:24 PM, Luke Kenneth Casson Leighton wrote: > On Wed, Oct 11, 2017 at 10:40 PM, Tor, the Marqueteur > wrote: > >>> thx tor. btw i still need to send you a micro-desktop and some >>> of the

Re: [Arm-netbook] Cost of pre-production prototypes?

On Wed, Oct 11, 2017 at 10:40 PM, Tor, the Marqueteur wrote: >> thx tor. btw i still need to send you a micro-desktop and some of >> the laser-cut casework i have here, so you can design and test the >> wooden corners. >> > Sooner or later, yes. I haven't

Re: [Arm-netbook] Cost of pre-production prototypes?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/10/2017 10:07 PM, Luke Kenneth Casson Leighton wrote: > > On Wed, Oct 11, 2017 at 8:27 AM, Tor, the Marqueteur > wrote: >> >> I'm interested, and I should be able to cover the costs. ... > thx tor. btw i

Re: [Arm-netbook] HDMI High-Frequency Layout: Recommendations

Afterthought: If PADS does give impedance values, please include the values for each of the HDMI differential traces and a URL to images of the top and bottom layers of that layout. That way I'll be able to make recommendations and markup the picture to hopefully make everything clear. Thanks,

Re: [Arm-netbook] HDMI High-Frequency Layout: Recommendations

Your change to TX1 definitely looks like an improvement. In order to make a determination on the best course of action regarding the keepout at the connector end and whether to recommend some type of taper I still have a burning question: What does PADS currently give as the impedance of the

Re: [Arm-netbook] Cost of pre-production prototypes?

--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 On Wed, Oct 11, 2017 at 8:27 AM, Tor, the Marqueteur wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > I'm interested, and I should be able to cover the costs. That said, I >

Re: [Arm-netbook] Cost of pre-production prototypes?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I'm interested, and I should be able to cover the costs. That said, I don't have sofware dev skills, so except perhaps for a micro-desktop board (depends on final design of the micro-desktop), there's not much advantage to the project in my having